Not very technical. However, the challenge is that they try to throw you off with very specific questions about your experiences coupled with broad questions. For instance, they would ask me three parts of my past job that I hated the most, and why, and I had to be very specific and detailed with exact situations, time, place, solution, etc. And then they would turn around and ask me what is the one single most proud moment in my life has been. They didn't hit me with any technical questions but I found those specific situational questions back to back with huge broad questions to be more challenging that I would have initially thought. The key to interviewing here (for this position at least) is to come in with SPECIFIC situations and instances of you problem solving, critically thinking, etc. in your life.